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Conference Proceedings

Water in Mining 2009

Conference Proceedings

Water in Mining 2009

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A Simple and Proven Technology for Reclaiming Acidic Mine Waters

The cost of water treatment is now more than ever a major consideration for maintaining an environmentally and economically sustainable mining operation. As an industry, we often have to consider water sources that are highly impure and difficult to treat. We are also discovering the value of our waste waters in this regard and using new and improved methods and technology to reclaim and reuse water. In many instances, the water or waste water to be treated is highly acidic and saturated in sparingly soluble salts._x000D_
Conventional systems used to liberate this type of water typically involve high doses of lime with large volumes of waste sludge produced, and are comparatively complex to operate, to pretreat the water in order to reduce scaling tendency on the reverse osmosis stage. However, if the water is considered valuable for reuse, then why not avoid difficult and cumbersome pretreatment processes and treat the water at low pH to keep the sparingly soluble salts, metals and other dissolved species in solution. This paper describes a patented technology that uses and successfully proves this concept as a cost effective option for certain situations. Results from a treatability study on an Australian groundwater are discussed, along with an economic comparison to a conventional method and discussion on full-scale potential._x000D_
FORMAL CITATION:Bourke, C and Mack, B, 2009. A simple and proven technology for reclaiming acidic mine waters, in Proceedings Water in Mining 2009, pp 19-24 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Published: 2009
  • PDF Size: 2.34 Mb.
  • Unique ID: P200910003

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